The very unscientific study was conducted by website Confused.com, which had four men and four women drive for 250 miles using the MotorMate safe driving app while listening to a particular soundtrack. The findings were reviewed by London University psychologist Dr. Simon Moore.

“If you want to encourage safe driving, you want to choose your own playlist…choose music that more or less maintains your resting body state,” says Dr. Moore in a video. “So anything between 60 and 80 beats per minute. Keep the noise levels down to a medium.”